Toyota Camry (XV70): Sensor (Motor) Failure (B2341,B2344)
DESCRIPTION
When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 is stored.
When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a gear position malfunction and the sliding roof operation is stopped, DTC B2344 is stored.
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B2341 | Sensor (Motor) Failure |
Sensor (motor) failure (The sliding roof ECU (sliding roof drive gear sub-assembly) enters fail-safe mode due to a problem with the motor) |
|
| B2344 |
Position Failure | Position failure (The sliding roof ECU (sliding roof drive gear sub-assembly) enters fail-safe mode due to a problem with the gear position) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- If the sliding roof ECU (sliding roof drive gear sub-assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear sub-assembly) must be initialized.
Click here
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PROCEDURE
|
1. | CHECK SLIDING ROOF OPERATION |
(a) Check the sliding roof auto operation.
Click here
OK:
Auto operation operates normally.
| NG | .gif) |
GO TO STEP 3 |
|
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|
2. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Body Electrical > Sliding Roof > Clear DTCs(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble CodesOK:
DTCs B2341 and B2344 are not output.
| OK | |
USE SIMULATION METHOD TO CHECK
|
| NG | |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
|
|
3. | INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
(a) Check that the sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.
Click here
OK:
Sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.
| NG | |
GO TO STEP 5 |
|
|
4. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Body Electrical > Sliding Roof > Clear DTCs(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble CodesOK:
DTCs B2341 and B2344 are not output.
| OK | |
END (MALFUNCTION DUE TO INITIALIZATION FAILURE) |
| NG | |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
|
|
5. | CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY) AND BODY GROUND) |
(a) Disconnect the V14 sliding roof switch (roof console box sub-assembly) connector.
(b) Disconnect the V2 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
V2-8 (CLS) - V14-4 (CLS) |
Always | Below 1 Ω |
|
V2-8 (CLS) or V14-4 (CLS) - Body ground |
Always | 10 kΩ or higher |
|
V2-10 (OPN) - V14-5 (OPN) |
Always | Below 1 Ω |
|
V2-10 (OPN) or V14-5 (OPN) - Body ground |
Always | 10 kΩ or higher |
|
V2-9 (CLS) - V14-18 (DOWN) |
Always | Below 1 Ω |
|
V2-9 (CLS) or V14-18 (DOWN) - Body ground |
Always | 10 kΩ or higher |
|
V2-5 (OPN) - V14-3 (UP) |
Always | Below 1 Ω |
|
V2-5 (OPN) or V14-3 (UP) - Body ground |
Always | 10 kΩ or higher |
|
V14-15 (GND) - Body ground |
Always | Below 1 Ω |
|
V2-2 (E) - Body ground |
Always | Below 1 Ω |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. | INSPECT SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY) |
(a) Remove the sliding roof switch (roof console box sub-assembly).
Click here
(b) Inspect the sliding roof switch (roof console box sub-assembly).
Click here
| OK | |
REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
|
| NG | |
REPLACE SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)
|
READ NEXT:
Switch Failure (B2342)
DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch (roof console box sub-assembly) is stuck for 30 seconds or more.
SEE MORE:
Data List / Active Test
DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
HINT: Using the Techstream to read the Data List allows the values or states of switche
Installation
INSTALLATION PROCEDURE 1. INSTALL NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS)
(a) Install the No. 1 vacuum switching valve assembly (for ACIS) to the intake air surge tank assembly with the bolt.
Torque: 9.0 N·m {92 kgf·cm, 80 in·lbf} (b) Connect the 2 vacuum hose sub-assemblies to the
